Telephone system



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INVENTOR.

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TELEPHONE sys'rsn Oct. 21, 1958 32 Sheets-Sheetv 5 original rma Nov. as. 1951 oa. 21, 195s R. s. TROUSDALE TELEPHONE sys'rsu original Fned Nov. 2s. 1951 :sa sheets-sheet 4 1 1 1 l 11 11 .11 I l I l l i 1 l I 1 1111 QNN RQNUWNQD e mwN MM 10% mw a mw. d Y 1 w f e 59: ..0 Sw n ,N

R.l B. 'rRousDALE Oct. 21, 1958 TELEPHONE SYSTEM original Filed Nev. 25. 1951 32 Sheets-Sheet 5 Oct. 21, 19584 R. B. TRousDAVLEI 2,857,463

` TELEPHONE SYSTEM K Original Filed Nov. 23, 1951 32 Sheets-Sheet 6 INVEN TOR. @be/f ffm/scialle NT .QEQSQM Qsb l R. B. TROUSDALE TELEPHONE SYSTEM oct. 21, 195B original Filed Nov. 2s,- 1951` 32 Shania-sheet '7 Oct; 21, 1958 Y R. B. TRouslALE 2,857,463

' v TELEPHONE sYsTEu A* Original Filed Nov. 23, 1951 32 Sheets-Sheet 8 Uma e mmf .-201

Oct. 21, 1958 lg. B. rRousDALE l TELEPHONE SYSTEM 32 Sheets-Sheet 9 Original Filed Nov. 23, 1951 Oct. 21, 1958 R. B. 'rRousDALE 2,857,463

f TELEPHONE sysma Original Filed Nov. 23, 1951 32 Sheets-Sheet 10 7e/2s' Sequence @12s/Werfen ggg.

Oct. 21, 19,58 R. B. 'rRousDALE 2,857,463

TELEPHONE SYSTEM v original Filed Nov. as, 1951 32 Sheets-Sheet 11 /sas' izv INVENToR. Rabe/'Z f'vwdalc BY l may

w iw@ R. B. TROUSDALE TELEPHONE SYSTEM Oct. 21, 1958 Original Filed Nov. 23, 1951 32 Sheets-Sheet 12 eegfer-zf/ INVHVTOR.

Oct; 21, 1958 Rm. 'rousDALE 2,857,463 l TELEPHONE SYSTEM Original Filed NOV. 23j 1951 v 32 Sheets-Sheet 13 v Oct. 21, 1958 A R. B. TRousDALE `2,857,463

. TzLlizPHONEl SYSTEM original Filed Nov; 23.11951 s2 sheets-sheet 14 www 1N V EN TOR.

uses BY] 2 Oct. 21, l1958 y R. B.=TRo'usDALE 2,857,463

' 'TELEPHONE SYSTEM Original Filed Nov. 23, 1951 32 Sheets-Sheet 15 y Code Sicuri Pulse (/''czzz-/Z/a 'rcuii -1200 l2/3 f E 7z .Z3 l 'oce fr/nin Qin Circui-l220 1N VEN TOR.

Oct. 21, 1958 R. B. TRsDALE 2,857,463

TELEPHONE ssm:

original Filed Nov. 2s, 1951 A v s2 sheets-sheet 1s Called A Y -222 Wmv.

INVENTOK @bari 5 Z'mzzscala @77M mlffwm/k 0ct. 21, 1 958 R. a. mousmlm 2,857,463

TELEPHONE SYSTEM Drginal Filed Nov.'23, 1951 32 Sheets-Sheet 17 Dial Impulse [rzeqraiar' (Ji muz' -203 as INVENTOR.

In, [5 l. gabe/i5 Foz/.Sicile 7% l BfJZwW' Oct. 21, 1958 R. B. 'rRoLJslzulxLEI 2,857,463

TELEPHONE SYSTEM original Filed Nov. 23, '1951 Y 32 sheets-sheet 1s *lian I failed me "a INVENToR.

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Oct. 21, 1958 R. B. -rRousDALE 2,857,453

vTELEPHONE: SYSTEM v v Original Filed Nov. 23, 1951 52- Sheets-Sheet 19 l I INVNTOIL Q75 j? 1 ggblf F'Olas'dl l BY Oct. 21, 1958 R. B. TRousDALE TELEPHONE SYSTEM 32 Sheets-Sheet 2O i, Wi lmwmwwmhwwwwwwmlmmmml-,

- INVEN TOR. obel'l 5f azzsdal@ BY v Original Filed Nov. 23, 1951 

